Ops Sorry

Ops stories. Mistakes were made.

The hottest Substack posts of Ops Sorry

And their main takeaways

Automated Reserved Instances

39 implied HN points • 05 Jun 23

🕹 Technology Software Cloud Computing Automation Cost management AWS

Companies nowadays focus on cost-effective approaches for efficiency and innovation.
Efficiency is crucial for innovation and reinvestment in products and services.
Automated Reserved Instances can provide automation, near full coverage, and instant savings, but careful assessment is needed before subscribing.

How to lose a cluster in 28 volumes

19 implied HN points • 10 Jul 23

🕹 Technology Cloud Computing Networking Infrastructure

Understanding the limitations of your infrastructure is crucial before deploying in production.
Troubleshooting issues may require looking beyond the immediate networking concerns.
Consider configuring volume attachment limits to address potential IP address exhaustion.

Migrating ArgoCD PVCs from One Cluster to Another

19 implied HN points • 26 Jun 23

🕹 Technology Software Deployment Migration Management

Migrating PVCs with ArgoCD can lead to sync issues due to certain parameters becoming immutable.
Modifying PVCs after creation is not possible, so consider letting ArgoCD handle PVC creation and modifying the bound PV instead.
To resolve PVC migration issues with ArgoCD, delete the bound PV, update the PV manifest with new PVC values, and verify the status updates back to 'Bound.'

Getting environment variables in ingress-nginx with Lua

19 implied HN points • 19 Jun 23

🕹 Technology Networking Configuration Troubleshooting Documentation

To access environment variables in ingress-nginx with Lua, use the os library with os.getenv.
Explicitly list environment variables in nginx.conf using the env directive for Lua to access them.
Understanding the nginx.conf template and main-snippet can help set environment variables in the controller's configmap.

How to assess service providers who offer reserved instances automation?

19 implied HN points • 12 Jun 23

🕹 Technology Automation Cloud Computing Financial Management Risk management

Providers take a percentage or tiered savings from your reserved instances savings.
Check if the mechanism of RI coverage is automated or manual to match your risk tolerance.
Consider how buyback works and if providers credit back lead time or offer instant sales.

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